US20160131888A1 - Testing slide for microscopes equipped with water immersion or physiology objectives - Google Patents
Testing slide for microscopes equipped with water immersion or physiology objectives Download PDFInfo
- Publication number
- US20160131888A1 US20160131888A1 US14/937,420 US201514937420A US2016131888A1 US 20160131888 A1 US20160131888 A1 US 20160131888A1 US 201514937420 A US201514937420 A US 201514937420A US 2016131888 A1 US2016131888 A1 US 2016131888A1
- Authority
- US
- United States
- Prior art keywords
- slide
- solvent
- adhesive
- water
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 238000007654 immersion Methods 0.000 title abstract description 4
- 230000035479 physiological effects, processes and functions Effects 0.000 title description 5
- 239000011324 bead Substances 0.000 claims abstract description 19
- 239000000853 adhesive Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 13
- 230000001070 adhesive effect Effects 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 8
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000002209 hydrophobic effect Effects 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 239000011877 solvent mixture Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 229920001817 Agar Polymers 0.000 description 7
- 239000008272 agar Substances 0.000 description 7
- 229920000936 Agarose Polymers 0.000 description 6
- 238000003384 imaging method Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 239000002105 nanoparticle Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- QKAGYSDHEJITFV-UHFFFAOYSA-N 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-(trifluoromethyl)pentane Chemical compound FC(F)(F)C(F)(F)C(F)(OC)C(F)(C(F)(F)F)C(F)(F)F QKAGYSDHEJITFV-UHFFFAOYSA-N 0.000 description 1
- 230000005653 Brownian motion process Effects 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 238000005537 brownian motion Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 239000000017 hydrogel Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000386 microscopy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012454 non-polar solvent Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 239000002096 quantum dot Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/34—Microscope slides, e.g. mounting specimens on microscope slides
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/33—Immersion oils, or microscope systems or objectives for use with immersion fluids
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/16—Microscopes adapted for ultraviolet illumination ; Fluorescence microscopes
Definitions
- the invention generally relates to testing slides. More particularly, the invention relates to a testing slide for microscopes equipped with water immersion or physiology objectives.
- a water immersion or physiology objective is a specially designed objective lens used to image samples in water-like medium with maximum resolution. This is achieved by immersing the objective lens in the water-like medium along with the sample; since most live specimens live in water, a physiology objective can image live samples in their native state. Since the objective is designed to match the index of refraction of water, spherical aberrations are minimized and resolution maximized.
- a sample slide is used to assess the imaging capabilities of microscopes equipped with objectives designed for water or media with a similar refractive index.
- the resolution and imaging capability of such microscopes are assessed by imaging fluorescent beads that are the same size as or smaller than the diffraction limited resolution limit, typically 200 nm for a multi-photon microscope, and 50-100 nm for a confocal microscope.
- Water-based dipping (physiology) objectives must be immersed in water or an alternative medium with a similar index of refraction to maximize their resolution.
- testing the resolving capability of microscopes with such objectives is difficult because beads on the order of 50-200 nm move freely in water due to Brownian motion.
- the current dominant method for optical testing of water objectives is imaging fluorescent beads suspended in agar, agarose or polyacrylamine. All of these methods are problematic. There are two difficulties with agar and agarose. First, both agar and agarose is fragile. Agar and agarose are heat sensitive, and break down under high intensity light emitted from a laser source. Agar and agarose age and are degraded by microbes over time. Agar and agarose also are highly dependent on exact production methods, with small changes in manufacture introducing optical aberrations. In addition, agar/water mixtures have an index of refraction significantly higher than that of water. The other alternative, Hydrogels made of polyacrylamide, is also undesirable, because it is toxic, and is flexible, shifting under stress. Therefore, there is a need to have a testing slide that uses a material that is tougher, easier to produce, and more reproducible than the existing methods.
- One embodiment of the invention provides a slide including: a chamber; and a mixture of fluorescent beads, solvent and adhesive in the chamber.
- Another embodiment of the invention provides a method of manufacturing a slide, the method including: providing a chamber in the slide; mixing fluorescent beads in a solvent; introducing the fluorescent beads-solvent mixture into an adhesive; putting beads-solvent-adhesive mixture into the chamber; and curing the adhesive.
- FIG. 1 illustrates a testing slide according to an embodiment.
- FIG. 2 illustrates steps to manufacture a testing slide according to an embodiment.
- FIG. 1 shows a sample slide 100 that contains a chamber 110 containing a solid with an index of refraction similar to that of water, according to an embodiment. Impregnated in this solid are fluorescent beads, scattered evenly throughout the material.
- FIG. 2 An embodiment of manufacturing a testing slide is shown in FIG. 2 .
- a sample slide that contains a chamber is provided.
- fluorescent nanoparticles are placed dried, and re-suspended in acetone, or similar solvents that are hydrophobic, such as WE-71000 (3M), or HFE-7300.
- These fluorescent nanoparticles contain non-polar surface groups, such that they are resistant to, and soluble in, non-polar or organic solvents.
- One such example of a useful nanoparticle would be ad, filled with quantum dots, covered with non-polar surface groups.
- the beads are vortexed and sonicated to ensure all bead aggregates are dissociated.
- the Butyl acetate/bead mixture is introduced in an optical adhesive and encapsulant, such as MY-133 (Electro-Optical Components.).
- this adhesive contains 90% polymers in a freon substitute solvent.
- the bead-solvent-adhesive mixture is then placed in a sample slide well.
- the adhesive is then cured by isolating from oxygen and exposed to a light of wavelength 340-380 nm.
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Sampling And Sample Adjustment (AREA)
- Microscoopes, Condenser (AREA)
- Oil, Petroleum & Natural Gas (AREA)
Abstract
A testing slide for microscopes equipped with water immersion objectives. The slide has a chamber containing a solid with an index of refraction similar to that of water. Impregnated in this solid are fluorescent beads, scattered evenly throughout the material.
Description
- This application claims the benefit of U.S. Provisional Application No. 62/078,144 filed on Nov. 11, 2014, the contents of which are herein incorporated by reference.
- The invention generally relates to testing slides. More particularly, the invention relates to a testing slide for microscopes equipped with water immersion or physiology objectives.
- In light microscopy, a water immersion or physiology objective is a specially designed objective lens used to image samples in water-like medium with maximum resolution. This is achieved by immersing the objective lens in the water-like medium along with the sample; since most live specimens live in water, a physiology objective can image live samples in their native state. Since the objective is designed to match the index of refraction of water, spherical aberrations are minimized and resolution maximized.
- A sample slide is used to assess the imaging capabilities of microscopes equipped with objectives designed for water or media with a similar refractive index. The resolution and imaging capability of such microscopes are assessed by imaging fluorescent beads that are the same size as or smaller than the diffraction limited resolution limit, typically 200 nm for a multi-photon microscope, and 50-100 nm for a confocal microscope. Water-based dipping (physiology) objectives must be immersed in water or an alternative medium with a similar index of refraction to maximize their resolution. Unfortunately, testing the resolving capability of microscopes with such objectives is difficult because beads on the order of 50-200 nm move freely in water due to Brownian motion. Therefore, some method is needed to hold the beads in place during imaging while retaining the same index of refraction as water. Simply attaching the fluorescent beads to a glass slide and immersing in water does not work, as the optics at the water/glass boundary interfere with the resolution measurements.
- The current dominant method for optical testing of water objectives is imaging fluorescent beads suspended in agar, agarose or polyacrylamine. All of these methods are problematic. There are two difficulties with agar and agarose. First, both agar and agarose is fragile. Agar and agarose are heat sensitive, and break down under high intensity light emitted from a laser source. Agar and agarose age and are degraded by microbes over time. Agar and agarose also are highly dependent on exact production methods, with small changes in manufacture introducing optical aberrations. In addition, agar/water mixtures have an index of refraction significantly higher than that of water. The other alternative, Hydrogels made of polyacrylamide, is also undesirable, because it is toxic, and is flexible, shifting under stress. Therefore, there is a need to have a testing slide that uses a material that is tougher, easier to produce, and more reproducible than the existing methods.
- One embodiment of the invention provides a slide including: a chamber; and a mixture of fluorescent beads, solvent and adhesive in the chamber.
- Another embodiment of the invention provides a method of manufacturing a slide, the method including: providing a chamber in the slide; mixing fluorescent beads in a solvent; introducing the fluorescent beads-solvent mixture into an adhesive; putting beads-solvent-adhesive mixture into the chamber; and curing the adhesive.
-
FIG. 1 illustrates a testing slide according to an embodiment. -
FIG. 2 illustrates steps to manufacture a testing slide according to an embodiment. - The description of illustrative embodiments according to principles of the present invention is intended to be read in connection with the accompanying drawings, which are to be considered part of the entire written description. In the description of embodiments of the invention disclosed herein, any reference to direction or orientation is merely intended for convenience of description and is not intended in any way to limit the scope of the present invention. Relative terms such as “lower,” “upper,” “horizontal,” “vertical,” “above,” “below,” “up,” “down,” “top” and “bottom” as well as derivative thereof (e.g., “horizontally,” “downwardly,” “upwardly,” etc.) should be construed to refer to the orientation as then described or as shown in the drawing under discussion. These relative terms are for convenience of description only and do not require that the apparatus be constructed or operated in a particular orientation unless explicitly indicated as such. Terms such as “attached,” “affixed,” “connected,” “coupled,” “interconnected,” and similar refer to a relationship wherein structures are secured or attached to one another either directly or indirectly through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise. Moreover, the features and benefits of the invention are illustrated by reference to the exemplified embodiments. Accordingly, the invention expressly should not be limited to such exemplary embodiments illustrating some possible non-limiting combination of features that may exist atone or in other combinations of features; the scope of the invention being defined by the claims appended hereto.
- This disclosure describes the best mode or modes of practicing the invention as presently contemplated. This description is not intended to be understood in a limiting sense, but provides an example of the invention presented solely for illustrative purposes by reference to the accompanying drawings to advise one of ordinary skill in the art of the advantages and construction of the invention. In the various views of the drawings, like reference characters designate like or similar parts.
-
FIG. 1 shows a sample slide 100 that contains a chamber 110 containing a solid with an index of refraction similar to that of water, according to an embodiment. Impregnated in this solid are fluorescent beads, scattered evenly throughout the material. - An embodiment of manufacturing a testing slide is shown in
FIG. 2 . In 210, a sample slide that contains a chamber is provided. In 220, fluorescent nanoparticles are placed dried, and re-suspended in acetone, or similar solvents that are hydrophobic, such as WE-71000 (3M), or HFE-7300. These fluorescent nanoparticles contain non-polar surface groups, such that they are resistant to, and soluble in, non-polar or organic solvents. One such example of a useful nanoparticle would be a bead, filled with quantum dots, covered with non-polar surface groups. In 230, the beads are vortexed and sonicated to ensure all bead aggregates are dissociated. In 240, the Butyl acetate/bead mixture is introduced in an optical adhesive and encapsulant, such as MY-133 (Electro-Optical Components.). In one embodiment, this adhesive contains 90% polymers in a freon substitute solvent. In 250, the bead-solvent-adhesive mixture is then placed in a sample slide well. In 260, the adhesive is then cured by isolating from oxygen and exposed to a light of wavelength 340-380 nm. - While the present invention has been described at some length and with some particularity with respect to the several described embodiments, it is not intended that it should be limited to any such particulars or embodiments or any particular embodiment, but it is to be construed with references to the appended claims so as to provide the broadest possible interpretation of such claims in view of the prior art and, therefore, to effectively encompass the intended scope of the invention. Furthermore, the foregoing describes the invention in terms of embodiments foreseen by the inventor for which an enabling description was available, notwithstanding that insubstantial modifications of the invention, not presently foreseen, may nonetheless represent equivalents thereto.
Claims (14)
1. A slide comprising:
a chamber; and
a mixture of fluorescent beads, solvent and adhesive in the chamber.
2. The slide of claim 1 , wherein the mixture has a refractive index that is substantially the same as the refractive index of water.
3. The slide of claim 1 , wherein the solvent is hydrophobic.
4. The slide of claim 1 , wherein the solvent comprises acetone.
5. The slide of claim 1 , wherein the adhesive comprises about 90% polymers in a freon substitute solvent.
6. The slide of claim 1 , wherein the fluorescent beads contain non-polar surface groups.
7. A method of manufacturing a slide, the method comprising:
providing a chamber in the slide;
mixing fluorescent beads in a solvent;
introducing the fluorescent beads-solvent mixture into an adhesive;
putting beads-solvent-adhesive mixture into the chamber; and
curing the adhesive.
8. The method of claim 7 , wherein the beads are vortexed and sonicated such that all bead aggregates are dissociated.
9. The method of claim 7 , wherein the solvent is hydrophobic.
10. The method of claim 7 , wherein the solvent comprises acetone.
11. The method of claim 7 , wherein the adhesive comprises about 90% polymers in a freon substitute solvent.
12. The method of claim 7 , wherein adhesive is cured by isolating from oxygen and exposed to light.
13. The method of claim 12 , wherein the light has a wavelength of 340-380 nm.
14. The method of claim 7 , wherein the fluorescent beads contain non-polar surface groups.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/937,420 US20160131888A1 (en) | 2014-11-11 | 2015-11-10 | Testing slide for microscopes equipped with water immersion or physiology objectives |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201462078144P | 2014-11-11 | 2014-11-11 | |
US14/937,420 US20160131888A1 (en) | 2014-11-11 | 2015-11-10 | Testing slide for microscopes equipped with water immersion or physiology objectives |
Publications (1)
Publication Number | Publication Date |
---|---|
US20160131888A1 true US20160131888A1 (en) | 2016-05-12 |
Family
ID=55912111
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/937,420 Abandoned US20160131888A1 (en) | 2014-11-11 | 2015-11-10 | Testing slide for microscopes equipped with water immersion or physiology objectives |
Country Status (4)
Country | Link |
---|---|
US (1) | US20160131888A1 (en) |
EP (1) | EP3218758A1 (en) |
CN (1) | CN107076978A (en) |
WO (1) | WO2016077337A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108760417B (en) * | 2018-03-30 | 2021-03-30 | 苏试宜特(上海)检测技术有限公司 | Preparation method of transmission electron microscope test piece |
US20210293673A1 (en) * | 2018-08-01 | 2021-09-23 | Diapath S.P.A. | Method for the preparation of biological, cytological, histological and autopsical samples and composition for mounting microscope slides |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4689307A (en) * | 1986-09-02 | 1987-08-25 | Caribbean Microparticles Corporation | Fluorescence microscopy sample mounting method and structure |
US20020114934A1 (en) * | 2000-08-07 | 2002-08-22 | Liu Junkang J. | Antisoiling hardcoat |
US20080102006A1 (en) * | 2006-10-30 | 2008-05-01 | Ventana Medical Systems, Inc. | Thin film apparatus and method |
US20100178712A1 (en) * | 2004-09-01 | 2010-07-15 | Life Technologies Corporation | Microplates containing microsphere fluorescence standards, microsphere standards, and methods for their use |
US20110142734A1 (en) * | 2002-05-09 | 2011-06-16 | The University Of Chicago | Device and method for pressure-driven plug transport |
US20110318226A1 (en) * | 2004-07-16 | 2011-12-29 | Yu Ge | Calibration slide for fluorescence detection instruments and process of preparation |
US20120202241A1 (en) * | 2008-05-28 | 2012-08-09 | Steven Paul Wheeler | Histological specimen treatment apparatus and method |
US20130109575A1 (en) * | 2009-12-23 | 2013-05-02 | Raindance Technologies, Inc. | Microfluidic systems and methods for reducing the exchange of molecules between droplets |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10202466B4 (en) * | 2002-01-23 | 2004-09-02 | Carl Zeiss Jena Gmbh | Slides for fluorescence microscopy |
US7595874B1 (en) * | 2006-02-08 | 2009-09-29 | Sciperio, Inc. | Method of condensed cell slide preparation and detection of rarely occurring cells on microscope slides |
RU2386137C1 (en) * | 2008-07-29 | 2010-04-10 | Учреждение Российской академии медицинских наук Научно-исследовательский институт экспериментальной медицины Северо-Западного отделения РАМН | Coat of slides for immunocytochemical and histological studies |
CN102812392B (en) * | 2010-01-15 | 2015-01-21 | Qbc诊断股份有限公司 | Fluorescent microscope slide |
-
2015
- 2015-11-10 EP EP15858207.2A patent/EP3218758A1/en not_active Withdrawn
- 2015-11-10 WO PCT/US2015/059942 patent/WO2016077337A1/en active Application Filing
- 2015-11-10 CN CN201580057505.4A patent/CN107076978A/en active Pending
- 2015-11-10 US US14/937,420 patent/US20160131888A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4689307A (en) * | 1986-09-02 | 1987-08-25 | Caribbean Microparticles Corporation | Fluorescence microscopy sample mounting method and structure |
US20020114934A1 (en) * | 2000-08-07 | 2002-08-22 | Liu Junkang J. | Antisoiling hardcoat |
US20110142734A1 (en) * | 2002-05-09 | 2011-06-16 | The University Of Chicago | Device and method for pressure-driven plug transport |
US20110318226A1 (en) * | 2004-07-16 | 2011-12-29 | Yu Ge | Calibration slide for fluorescence detection instruments and process of preparation |
US20100178712A1 (en) * | 2004-09-01 | 2010-07-15 | Life Technologies Corporation | Microplates containing microsphere fluorescence standards, microsphere standards, and methods for their use |
US20080102006A1 (en) * | 2006-10-30 | 2008-05-01 | Ventana Medical Systems, Inc. | Thin film apparatus and method |
US20120202241A1 (en) * | 2008-05-28 | 2012-08-09 | Steven Paul Wheeler | Histological specimen treatment apparatus and method |
US20130109575A1 (en) * | 2009-12-23 | 2013-05-02 | Raindance Technologies, Inc. | Microfluidic systems and methods for reducing the exchange of molecules between droplets |
Also Published As
Publication number | Publication date |
---|---|
EP3218758A1 (en) | 2017-09-20 |
CN107076978A (en) | 2017-08-18 |
WO2016077337A1 (en) | 2016-05-19 |
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Legal Events
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---|---|---|---|
AS | Assignment |
Owner name: THORLABS, INC., NEW JERSEY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HAEBERLE, HENRY;BROOKER, JEFFREY S.;REEL/FRAME:037095/0448 Effective date: 20151111 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |